* {
    margin: 0;
    padding: 0;
}

.banner {
    position: relative;
    overflow: hidden;
}

.banner-view {
    position: relative;
    height: 100%;
    z-index: 999;
    background-color: #090b22;
    background-repeat: no-repeat;
}

.banner-view i {
    position: relative;
    display: block;
    float: left;
    background-repeat: no-repeat;
}

.banner-btn {
    position: absolute;
    width: 100%;
    height: 0;
    top: 45%;
    font-family: "宋体";
    font-size: 20px;
    z-index: 1000;
}

.banner-btn span {
    display: block;
    float: left;
    width: 50px;
    line-height: 50px;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.7);
    color: #74dcff;
    cursor: pointer;
    font-weight: 800;
    background-image:
}

.banner-btn span:hover {
    background-color: rgba(0, 0, 0, 0.6);
}

.banner-btn span+span {
    float: right;
}

.banner-number {
    position: absolute;
    bottom: 35px;
    width: 100%;
    height: 0;
    font-size: 0;
    text-align: center;
    z-index: 1000;
}

.banner-number>* {
    display: inline-block;
    border: 2px solid #fff;
    border-radius: 50%;
    margin: 0 8px;
    width: 10px;
    height: 10px;
    background-color: #00c3ff;
    cursor: pointer;
}

.banner-number>*:hover,
.banner-number>*.on {
    background-color: #ffc300;
}

.banner-progres {
    width: 100%;
    position: absolute;
    bottom: 0;
    height: 3px;
    z-index: 1000;
}

.banner-progres i {
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 3px;
    display: block;
    height: 100%;
    width: 0;
}